Effects of far infrared ray on Hela cells and WI-38 cells

Y. Hamada, F. Teraoka, T. Matsumoto, A. Madachi, F. Toki, E. Uda, R. Hase, J. Takahashi, N. Matsuura

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26 Citations (Scopus)


The ability of cells to proliferate and adhere is an important step of cancer metastasis. Far infrared ray (FIR) with wavelengths between 4 and 14 μm is called the growth ray that is efficiently absorbed by a living organism. Therefore, the use of these substances in cancer therapy at body temperature (37 °C) will be significant. Bamboo charcoal powder was used as a FIR emission material. Here, we performed WST assay and adhesion assay in order to examine the effects of the FIR using Hela cells and fetal lung fibroblasts (WI-38). The multiplication rate of Hela cells showed a significant difference for a 6-day culture, though the multiplication rate of WI-38 cells showed no significant difference at a 3- and 6-day culture. These results show the FIR plays an important role in tumor cells in vitro.

Original languageEnglish
Pages (from-to)339-341
Number of pages3
JournalInternational Congress Series
Issue numberC
Publication statusPublished - Aug 1 2003


  • Cancer metastasis
  • Cancer therapy
  • Far infrared ray (FIR)

ASJC Scopus subject areas

  • Medicine(all)

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    Hamada, Y., Teraoka, F., Matsumoto, T., Madachi, A., Toki, F., Uda, E., Hase, R., Takahashi, J., & Matsuura, N. (2003). Effects of far infrared ray on Hela cells and WI-38 cells. International Congress Series, 1255(C), 339-341. https://doi.org/10.1016/S0531-5131(03)00887-2